git remote add new_repo_name ssh://git@somerepo.repo.dev:foo/bar/baz.git
# Note the new_repo_name. This doesn't replace your origin.
git remote -v
# The above will display
new_repo_name    https://second.repo.dev/foo/bar.git (fetch)
new_repo_name    https://second.repo.dev/foo/bar.git (push)
origin            https://first.repo.dev/bar/baz.git (fetch)
origin             https://first.repo.dev/bar/baz.git (push)